相關標簽: 通達信的函數 飛狐 、 飛狐交易師通達信接口 、 通達信板塊轉入飛狐 、 飛狐 通達信 接口 、 未來函數xma 、 xma函數 、 通達信顏色函數 、 通達信l2函數表 、 通達信 劃水平線函數 、

XMA-----偏移移動平均函數的飛狐表達式（附通達信驗證碼）　
自通達信軟件的專用函數XMA偏移移動平均問世以來，引起了熱議。原因并不在于其帶未來性質的準確性，而在于其一直沒有公開的源代碼或者說數學表達式。今天不準備就其原理及其運用多啰嗦，我們只要用搜索引擎就能在網上找到很多關于XMA的東東。

下面發兩套源碼，

一是飛狐版的XMA，

二是通達信上使用的XMA驗證源碼。
 

{公式顯示：XMA(C,N);N值最大做到50} {內容來至程序化交易網 CXH99.COM}

飛狐版XMA:

INPUT:N(7,1,50);
P:=(DATACOUNT-BARPOS+1);
XMA:IF(P=1,refX(MA(CLOSE,N/2+1),N/2),IF(P=2 AND N>1,
refX(MA(CLOSE,N/2+2),N/2),IF(P=3 AND N>4,refX(MA(CLOSE,N/2+3),N/2),
IF(P=4 AND N>6,refX(MA(CLOSE,N/2+4),N/2),IF(P=5 AND N>8,
refX(MA(CLOSE,N/2+5),N/2),IF(P=6 AND N>10,refX(MA(CLOSE,N/2+6),N/2),
IF(P=7 AND N>12,refX(MA(CLOSE,N/2+7),N/2),IF(P=8 AND
N>14,refX(MA(CLOSE,N/2+8),N/2),IF(P=9 AND N>16,refX(MA(CLOSE,N/2+9),N/2),
IF(P=10 AND N>18,refX(MA(CLOSE,N/2+10),N/2),IF(P=11 AND
N>20,refX(MA(CLOSE,N/2+11),N/2),IF(P=12 AND N>22,refX(MA(CLOSE,N/2+12),
N/2),IF(P=13 AND N>24,refX(MA(CLOSE,N/2+13),N/2),IF(P=14
AND N>26,refX(MA(CLOSE,N/2+14),N/2),IF(P=15 AND N>28,refX(MA(CLOSE,N/2+15),
N/2),IF(P=16 AND N>30,refX(MA(CLOSE,N/2+16),N/2),IF(P=17
AND N>32,refX(MA(CLOSE,N/2+17),N/2),IF(P=18 AND N>34,refX(MA(CLOSE,N/2+18),
N/2),IF(P=19 AND N>36,refX(MA(CLOSE,N/2+19),N/2),IF(P=20
AND N>38,refX(MA(CLOSE,N/2+20),N/2),IF(P=21 AND N>40,refX(MA(CLOSE,N/2+21), {內容來至 CXH99.COM }
N/2),IF(P=22 AND N>42,refX(MA(CLOSE,N/2+22),N/2),IF(P=23
AND N>44,refX(MA(CLOSE,N/2+23),N/2),IF(P=24 AND N>46,refX(MA(CLOSE,N/2+24),
N/2),refX(MA(CLOSE,N),(N+1)/2-1)))))))))))))))))))))))));

通達信XMA驗證版：

系統XMA:XMA(C,N);
X:IF(CURRBARSCOUNT=1,refX(MA(C,N/2+1),N/2),IF(CURRBARSCOUNT=2 AND N>1,
refX(MA(C,N/2+2),N/2),IF(CURRBARSCOUNT=3 AND N>4,refX(MA(C,N/2+3),N/2),
IF(CURRBARSCOUNT=4 AND N>6,refX(MA(C,N/2+4),N/2),IF(CURRBARSCOUNT=5 AND N>8,
refX(MA(C,N/2+5),N/2),IF(CURRBARSCOUNT=6 AND N>10,refX(MA(C,N/2+6),N/2),
IF(CURRBARSCOUNT=7 AND N>12,refX(MA(C,N/2+7),N/2),IF(CURRBARSCOUNT=8 AND
N>14,refX(MA(C,N/2+8),N/2),IF(CURRBARSCOUNT=9 AND N>16,refX(MA(C,N/2+9),N/2),
IF(CURRBARSCOUNT=10 AND N>18,refX(MA(C,N/2+10),N/2),IF(CURRBARSCOUNT=11 AND
N>20,refX(MA(C,N/2+11),N/2),IF(CURRBARSCOUNT=12 AND N>22,refX(MA(C,N/2+12),
N/2),IF(CURRBARSCOUNT=13 AND N>24,refX(MA(C,N/2+13),N/2),IF(CURRBARSCOUNT=14
AND N>26,refX(MA(C,N/2+14),N/2),IF(CURRBARSCOUNT=15 AND N>28,refX(MA(C,N/2+15),
N/2),IF(CURRBARSCOUNT=16 AND N>30,refX(MA(C,N/2+16),N/2),IF(CURRBARSCOUNT=17
AND N>32,refX(MA(C,N/2+17),N/2),IF(CURRBARSCOUNT=18 AND N>34,refX(MA(C,N/2+18),
N/2),IF(CURRBARSCOUNT=19 AND N>36,refX(MA(C,N/2+19),N/2),IF(CURRBARSCOUNT=20
AND N>38,refX(MA(C,N/2+20),N/2),IF(CURRBARSCOUNT=21 AND N>40,refX(MA(C,N/2+21),
N/2),IF(CURRBARSCOUNT=22 AND N>42,refX(MA(C,N/2+22),N/2),IF(CURRBARSCOUNT=23
AND N>44,refX(MA(C,N/2+23),N/2),IF(CURRBARSCOUNT=24 AND N>46,refX(MA(C,N/2+24),
N/2),refX(MA(C,N),(N+1)/2-1)))))))))))))))))))))))));